B.O.R Chainrings 4 bolt Shimano
Posted: Tue May 23, 2017 11:22 pm
Anyone with experience with B.O.R chainrings shifting on eTap or Dura Ace 9000? B.O.R have some nice looking new shimano compatible 4 bolt mounted rings that I hadn't seen before. Wonder if anyone had any experience with shifting any of their rings.
